Nodule caused by an ingrown trichome can be an uncomfortable ailment which requires correct treatment. Such form of bump develops when a hair becomes back into your epidermis, triggering swelling and possible infection. Dealing with a cyst resulting from an hair properly can help ease discomfort and stop additional problems. In case you are dealing with an ingrown hair cyst, visiting professional guidance is recommended to manage it properly and avoid any potential risks associated with self-treatment.